books.google.com - Neurofeedback is a cutting-edge, drug-free therapeutic technique used by over a thousand licensed therapists in North America to treat a range of conditions from attention deficit and hyperactivity disorders to epilepsy, stroke, anxiety, migraine, and depression. First popularized in the 1970s, this...http://books.google.com/books/about/Biofeedback_for_the_Brain.html?id=uqPqRIb9wCAC&utm_source=gb-gplus-shareBiofeedback for the Brain